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31441210142081 is a prime number
BaseRepresentation
bin1110010011000011110100…
…01010010110110110000001
311010022202020222211200022112
413021201322022112312001
513110113044244021311
6150511520442145105
76423360332436125
oct711417212266601
9133282228750275
1031441210142081
11a022162500003
1236396257b2195
131470b7ca3127c
147a9a96b73585
15397cd0cb128b
hex1c987a296d81

31441210142081 has 2 divisors, whose sum is σ = 31441210142082. Its totient is φ = 31441210142080.

The previous prime is 31441210142071. The next prime is 31441210142131. The reversal of 31441210142081 is 18024101214413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28614036925681 + 2827173216400 = 5349209^2 + 1681420^2 .

It is a cyclic number.

It is not a de Polignac number, because 31441210142081 - 214 = 31441210125697 is a prime.

It is a super-2 number, since 2×314412101420812 (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31441210142011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15720605071040 + 15720605071041.

It is an arithmetic number, because the mean of its divisors is an integer number (15720605071041).

Almost surely, 231441210142081 is an apocalyptic number.

It is an amenable number.

31441210142081 is a deficient number, since it is larger than the sum of its proper divisors (1).

31441210142081 is an equidigital number, since it uses as much as digits as its factorization.

31441210142081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 32.

Adding to 31441210142081 its reverse (18024101214413), we get a palindrome (49465311356494).

The spelling of 31441210142081 in words is "thirty-one trillion, four hundred forty-one billion, two hundred ten million, one hundred forty-two thousand, eighty-one".